The recording of values and statuses is an important contribution to run a contruction perfectly. With the help of protocols, changes and interruptions in the process are easier to reconstruct or, if necessary, to correct. 

A further aspect for a reliable recording are also the regulations from the legislators, if there are such. The logging systems with which we are working fulfil the recent valid regulations.

There are only few universal logging systems which can handle process datas of PLC and measure devices directly. Because of this we mainly use the logging systems which fit best to the process control system or which have been delivered with them.